CREATE TABLE MedicalAdvice (
			AdviceId INT IDENTITY(100,1) PRIMARY KEY,
			QueryId INT REFERENCES MedicalQuery(QueryId),
			RegNo INT REFERENCES Doctors(RegNo),
			AdviceBody VARCHAR(1024) NOT NULL,
			AdviceDate DATETIME NOT NULL,
			VoteUp INT DEFAULT 0,
			VoteDown INT DEFAULT 0,
			AdviceRank INT DEFAULT 0
		);